What is the main energy source that drives global climate?
a. solar
b. wind
c. mechanical
d. heat

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.